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Characterisation and evaluation data

Experiment descriptionTrait nameTrait methodScoreScore link
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Leaf glossiness of upper side1=absent or very weak, 3=[...] 4
Lettuce variety descripti[...] Head shape1 = narrow elliptic, 2 = [...] 3
Lettuce variety descripti[...] Growing conditions1 = indoor, 2 = outdoor, [...] 2
Field characterization tr[...] Heart formation-7
Field characterization tr[...] HomogeneityAt harvest maturity (3=he[...] 7
Field characterization tr[...] Tipburn sensitivityAt harvest maturity3
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Field characterization tr[...] Plant diameterAt harvest maturity, rela[...] 6
Field characterization tr[...] Leaf shape(1=narrow elliptic,2=el.,[...] 5
Field characterization tr[...] Side shoot formation tendAt harvest maturity2
Lettuce variety descripti[...] Leaf attitude at juvenile stage1 = erect, 3 = semi-erect[...] 4
Field characterization tr[...] Leaf anthocyanin contentAt harvest maturity1
Field characterization tr[...] Leaf venationAt harvest maturity (1= n[...] 1
Field characterization tr[...] Bolting timeCount the days from sowin[...] 101
Field characterization tr[...] Head heightAt harvest maturity, rela[...] 3
Multiplication in glassho[...] Flowering timeNo treatment. Count days [...] 4
Lettuce variety descripti[...] Bolting time(1=very early, ..., 9=ver[...] 7
Lettuce variety descripti[...] Leaf margin undulation1 = absent or very weak, [...] 1
Lettuce variety descripti[...] Head size1=very small,..,9=very la[...] 4
Lettuce variety descripti[...] Leaf anthocyanin coloration(1=absent, 9=present)1
Lettuce variety descripti[...] Head formation1 = absent, 2 = open head[...] 3
Lettuce variety descripti[...] Lactuca Mozaic VirusResistance to LMV strain [...] 9
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Multiplication in glassho[...] Seedling anthocyanin cont(1=not present,9=present)1
Field characterization tr[...] Seedling anthocyanin cont(1=not present,9=present)1
Lettuce variety descripti[...] Leaf thickness1 = very thin, 3 = thin, [...] 5
Lettuce variety descripti[...] Plant diameter1=very small,..,9=very la[...] 5
Field characterization tr[...] Leaf color(1=yellow, 2=green, 3=gra[...] 2
Lettuce variety descripti[...] Leaf margin incisions on apical part(1=absent, 9=present)1
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Multiplication in glassho[...] Flower anthocyanin content(1=not present,9=present)1
Lettuce variety descripti[...] Seedling anthocyanin cont(1=absent, 9=present)1
Lettuce variety descripti[...] Size of leaf blisters1 = very small, 3 = small[...] 2
Field characterization tr[...] Head leaves overlapAt harvest maturity (1= n[...] 6
Multiplication in glassho[...] Seed harvest timeNo treatment. Count days [...] 5
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Multiplication in glassho[...] Seed color(1=white,2=black,3=varieg[...] 1
Lettuce variety descripti[...] Seed color1 = white, 2 = yellow, 3 [...] 1
Field characterization tr[...] Leaf color intensity(3=light, 5=medium, 7=dar[...] 3
Lettuce variety descripti[...] Leaf attitude at harvest maturity1 = erect, 3 = semi-erect[...] 2
Field characterization tr[...] Leaf blisteringAt harvest maturity3
Field characterization tr[...] Head shapeAt harvest maturity, in l[...] 3
Field characterization tr[...] Leaf margin undulationAt harvest maturity2
Lettuce variety descripti[...] Time period until marketable maturity(1=very early, ..., 9=ver[...] 4
Lettuce variety descripti[...] Bremia lactucaeResistance to B. lactucae[...] 9
Field characterization tr[...] Leaf divisionAt harvest maturity (1=0,[...] 1
Field characterization tr[...] Seedling cotyledon shape(1=narrow elliptical, 2= [...] 2
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Experiment details

Experiment desciptionDataset remarkExperiment start yearExperiment end yearExperiment report
Multiplication in glasshouse. Temp: 15-18oC, no artif.light. No treatm.: sowing 22/3, planting 20/4. Vernalisation germinating seeds: sowing 15/2, planting 40/4. Foliar gibb. spray 20ppm: sowing 22/3, planting 20/4.Phenotypic data CGN1993
Field characterization trial.Phenotypic data CGN1995
Lettuce variety descriptions made available by the Netherlands Inspection Service for Horticulture up and until 2013. Descriptions are included for varieties that matched the CGN accession name.Phenotypic data CGN2013
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